<!DOCTYPE html>
<html>
	<head>
		<title>返回上一页</title>
	</head>
	<body>
		<a href="01.html">你好</a>
		<a href="http://www.baidu.com">百度</a>
		<input type="button" onclick="goBack()" value="点我返回"/>
	</body>
	<script>
		function goBack(){
			history.back(-1);
		}
	</script>
</html>